公开(公告)号：US4095984A

公开(公告)日：1978-06-20

申请号：US755302

申请日：1976-12-29

申请人： Tohru Sueyoshi ,  Nobuo Furtachi ,  Akio Okumura ,  Tadao Shishido

发明人： Tohru Sueyoshi ,  Nobuo Furtachi ,  Akio Okumura ,  Tadao Shishido

IPC分类号： G03C7/32 ,  C07D231/52 ,  C09B53/00 ,  C09B55/00 ,  G03C7/305 ,  G03C1/40 ,  G03C1/34 ,  G03C5/30 ,  G03C7/00

CPC分类号： C07D231/52 ,  G03C7/30558 ,  Y10S430/158

摘要： A photographic coupler capable of releasing a development inhibitor upon reaction with an oxidation product of a color developing agent and represented by the following general formula (I) or (II) ##STR1## wherein A represents a coupler residue; Z represents a sulfur atom, a selenium atom or an oxygen atom; R.sup.1 represents an aliphatic group; R.sup.2 and R.sup.3, which may be the same or different, each represents a hydrogen atom, an aliphatic group, an alkoxy group, a hydroxy group, or an aromatic group, and R.sup.2 and R.sup.3 can combine and represent the atoms necessary to form a benzene ring or a naphthalene ring, ##STR2## wherein A represents a coupler residue; R.sup.4 represents an aliphatic group or an aromatic group; and R.sup.5 and R.sup.6 which may be the same or different, each represents a hydrogen atom, an aliphatic group or an aromatic group; and silver halide photographic elements containing these photographic couplers. These photographic couplers are particularly useful for controlling or modifying a number of photographic characteristics such as sharpness, graininess and color quality in a multilayer color photographic material.

摘要翻译： 与彩色显影剂的氧化产物反应并由以下通式（I）或（II）表示的成像剂能够释放显影抑制剂的照相成色剂其中A表示成色剂残基; Z表示硫原子，硒原子或氧原子; R1表示脂肪族基团; R 2和R 3可以相同或不同，各自表示氢原子，脂族基团，烷氧基，羟基或芳族基团，R2和R3可以组合并表示形成苯所必需的原子 环或萘环，其中A表示成色剂残基; R4表示脂族基团或芳香族基团; 和可以相同或不同的R 5和R 6各自表示氢原子，脂族基团或芳基; 和含有这些照相成色剂的卤化银照相元件。 这些照相成色剂特别可用于控制或改变多层彩色照相材料中许多照相特征如锐度，颗粒度和颜色质量。